| Climate Johnston Atoll :
| tropical, but generally dry; consistent northeast trade winds with little seasonal temperature variation
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| Terrain Johnston Atoll :
| mostly flat
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| Elevation extremes lowest Johnston Atoll :
| Pacific Ocean 0 m
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| Elevation extremes highest Johnston Atoll :
| Summit Peak 5 m
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| Natural resources Johnston Atoll :
| guano deposits worked until depletion about 1890, terrestrial and aquatic wildlife
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| Land use arableland Johnston Atoll :
| 0%
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| Irrigated land Johnston Atoll :
| 0 sq km (1998 est.)
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| Natural hazards Johnston Atoll :
| NA
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| Environment current issues Johnston Atoll :
| no natural fresh water resources
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| Geography note Johnston Atoll :
| strategic location in the North Pacific Ocean; Johnston Island and Sand Island are natural islands, which have been expanded by coral dredging; North Island (Akau) and East Island (Hikina) are manmade islands formed from coral dredging; the egg-shaped reef is 34 km in circumference; closed to the public; a former US nuclear weapons test site; site of now-closed Johnston Atoll Chemical Agent Disposal System (JACADS); most facilities dismantled and cleanup complete in 2004; some low-growing vegetation
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